5.0 Tech Specs
2010 Roush 427R
Engine and Drivetrain Block 4.6-liter 90-degree V-8
Displacement 281 ci
Rods Cracked, powdered metal with floating wristpins
Pistons Hypereutectic aluminum
Camshafts SOHC, variable camshaft timing
Heads Aluminum, three valves per cylinder
Intake Composite shell-welded single-runner, charge-motion-control valves
Exhaust Stock with Roush after-cat system
Transmission
Tremec 3650 five-speed
Rearend 8.8-inch w/3.55 gears
Electronics
Engine Management
PCM w/Roush tune
Ignition Coil-on-plug
Gauges Roush white-face gauges, Roush vent pod with boost gauge
Chassis And Suspension
Front Suspension
Reverse-L independent MacPherson strut, 34mm tubular stabilizer bar
Springs Roush Performance
Struts Roush Performance
Brakes 316x30mm vented disc, twin-piston 43mm floating aluminum calipers
Wheels Roush 20-inch cast-chrome wheels
Tires Dunlop 275/35ZR20
Rear Suspension
Three-link solid axle with coilsprings, Panhard rod, and 20mm solid stabilizer bar
Springs Roush Performance
Shocks Roush Performance
Brakes 300x19mm vented disc, single-piston 43mm floating iron calipers
Wheels Roush 20-inch cast-chrome wheels
Tires Dunlop 275/35ZR20
| | Baseline | Heatsoaked | Open Airbox | HS VS. OAB |
| TQ | Power | A/F | TQ | Power | A/F | TQ | Power | A/F | TQ | Power |
| 2,000 | 263 | 99 | 12.3 | 263 | 99 | 11.9 | 274 | 103 | 13.1 | 11 | 4 |
| 2,500 | 276 | 130 | 11.9 | 277 | 131 | 11.7 | 290 | 137 | 12.5 | 13 | 6 |
| 3,000 | 287 | 163 | 11.5 | 287 | 163 | 11.6 | 298 | 169 | 12.4 | 11 | 6 |
| 3,500 | 295 | 196 | 11.4 | 297 | 197 | 11.4 | 307 | 204 | 12.0 | 10 | 7 |
| 4,000 | 307 | 232 | 11.2 | 305 | 225 | 11.3 | 313 | 237 | 12.0 | 8 | 12 |
| 4,500 | 312 | 267 | 11.3 | 313 | 261 | 11.0 | 319 | 272 | 12.0 | 6 | 11 |
| 5,000 | 309 | 293 | 11.1 | 307 | 297 | 11.1 | 315 | 299 | 11.8 | 8 | 2 |
| 5,500 | 303 | 316 | 11.1 | 303 | 316 | 11.0 | 311 | 325 | 11.4 | 8 | 9 |
| 6,000 | 290 | 331 | 11.2 | 289 | 329 | 11.0 | 300 | 341 | 11.8 | 11 | 12 |
| 6,300 | 274 | 328 | 11.2 | 280 | 335 | 11.1 | 291 | 348 | 12.0 | 11 | 13 |